Hanging type caisson device

The utility model discloses a hanging type caisson device. The hanging type caisson device is arranged around a pier column to be repaired and comprises a bottom-sealed conical steel box and a round steel mould box, wherein the bottom-sealed conical steel box and the round steel mould box are connected through bolts; the round steel mould box is connected to the pier column through a hanging frame, the hanging frame is connected with the round steel mould box through a tripping device, and the hanging frame is fixed to the pier column through a reinforcing rib with threads; a waterstop rubber belt is arranged between the bottom of the bottom-sealed conical steel box and the pier column. Bottom sealing concrete is also arranged between the bottom of the bottom-sealed conical steel box and the pier column. A baffle is also arranged between the bottom of the bottom-sealed conical steel box and the pier column. A valve is arranged on the bottom-sealed steel box and is used for regulating pressure and water. According to the hanging type caisson device, the hanging method is adopted, waterproof reinforcement of piers in water is achieved, and the hanging type caisson device is low in cost and good in effect.